Hi all. I'm stuck on this level (I've not long started playing). I'm playing the jet black gates/ alleys. I go all the way through to where i have to swing pole to pole to a rooftop and then reach a ring hovering over a green switch. How do i get from the roof/ ledge to the ring? There is no room to dash.Everything i have tried just lands me in front of a door i can only open via that switch under the giant ring. Please help!!!